this is such a cool concept! reminds me of one or two puzzles in vvvvvv but expanded upon.

a few notes on bugs or places i got stuck, hidden due to possible spoilers:

i think the big spike pit room's switch could be hinted better, e.g., by having a platform lead down to it. i discovered it by accident while playing in the spike pit (after discovering a probable bug; see the next point)

setting a spawn point at the right moment when hitting spikes means you can safely descend onto them. i used this to skip basically an entire puzzle.

i had a lot of trouble figuring out how to get on the revealed platform in the second-last chamber. eventually i found a video playthrough on twitter, which made it "obvious in retrospect", but otherwise i might have given up.